Comprehensive enterprise network analyzer, scanner and intrusion detection framework

ABSTRACT

A system and associated method and computer program product are provided for providing business rule-based network services utilizing a network. Initially, information relating to a plurality of computers is collected utilizing a plurality of agents coupled to the computers via a network. Next, the information is collected from the agents utilizing a plurality of controllers coupled to the agents. Then, a plurality of business rules is identified after which various services are provided utilizing the information based on the business rules.

FIELD OF THE INVENTION

The present invention relates to enterprise network systems, and moreparticularly to analyzing and protecting enterprise network systems.

BACKGROUND OF THE INVENTION

An enterprise network is a network for an enterprise, including multipleLANs, routers and servers, typically geographically separated. Thenetworks of the enterprise network can be connected together over a widearea network. Enterprise network management that has evolved from themainframe environment is still centered mainly on the operating systemsand is mostly manual and resource intensive.

Numerous tools have been developed to aid in network managementinvolving capacity planning, fault management, network monitoring, andperformance measurement. One example of such tools is the networkanalyzer.

In general, a “network analyzer” is a program that monitors and analyzesnetwork traffic, detecting bottlenecks and problems. Using thisinformation, a network manager can keep traffic flowing efficiently. Anetwork analyzer may also be used to capture data being transmitted on anetwork. The term “network analyzer” may further be used to describe aprogram that analyzes data other than network traffic. For example, adatabase can be analyzed for certain kinds of duplication. One exampleof a network analyzer is the SNIFFER ANALYZER™ device manufactured byNETWORK ASSOCIATES, INC™.

FIG. 1 shows a typical network analyzer 100 deployment attached to asingle switch 102. As shown, several personal computers 104 are coupledto Server A 106 and Server B 108 via a switch array 110. This deploymentsees broadcast and multicast traffic plus any unicast traffic to or fromthe network analyzer 100 only. In other words, the network analyzer 100provides only a constrained view that is incapable of providing acomplete picture of traffic between the personal computers and servers.

FIG. 2 depicts a network analyzer 200 deployment using spanning. Thisdeployment sees all broadcast and multicast traffic, plus any unicasttraffic to and from Server A. However, extra load has been added to theswitch 202.

FIG. 3 depicts a network analyzer 300 deployment using a Virtual LocalArea Network (VLAN) 302. This deployment sees broadcast and multicasttraffic and any unicast traffic to or from the computers on VLAN 1, butthe load on the switch 304 is now excessive.

At one time, repeated flat networks were the standard in an enterprisesetting. Prior art network analyzer systems can only typically see onebroadcast domain. This is due in large part to the fact that thesesystems were designed for flat repeated networks. Thus, such networkanalyzer systems function as an adequate solution in a “point”troubleshooting role, but do not scale to provide a true enterprisetroubleshooting and monitoring capability.

Over time, there has been a steady migration away from flat networkstowards fully switched networks. Given network topologies today, priorart network analyzer systems, as currently designed, cannot provide acomplete solution that is capable of monitoring, detecting andtroubleshooting problems on a corporate enterprise level. Even withmonitoring modules on every switch, everything still cannot be seen, andthere is a high cost associated with deploying this many monitoringmodules.

In addition to the need for additional network analyzer functionality inenterprise networks, there has been a coinciding need for additionalsecurity for enterprise networks.

Network security management is becoming a more difficult problem asnetworks grow in size and become a more integral part of organizationaloperations. Attacks on networks are growing both due to the intellectualchallenge such attacks represent for hackers and due to the increasingpayoff for the serious attacker. Furthermore, the attacks are growingbeyond the current capability of security management tools to identifyand quickly respond to those attacks. As various attack methods aretried and ultimately repulsed, the attackers will attempt new approacheswith more subtle attack features. Thus, maintaining network security ison-going, ever changing, and an increasingly complex problem.

Computer network attacks can take many forms and any one attack mayinclude many security events of different types. Security events areanomalous network conditions each of which may cause an anti-securityeffect to a computer network. Security events include stealingconfidential or private information; producing network damage throughmechanisms such as viruses, worms, or Trojan horses; overwhelming thenetwork's capacities in order to cause denial of service, and so forth.

There is thus a need for techniques of addressing both the analysis andsecurity of enterprise networks.

DISCLOSURE OF THE INVENTION

A system and associated method and computer program product are providedfor providing business rule-based network services utilizing a network.Initially, information relating to a plurality of computers is collectedutilizing a plurality of agents coupled to the computers via a network.Next, the information is collected from the agents utilizing a pluralityof controllers coupled to the agents. Then, a plurality of businessrules is identified after which various services are provided utilizingthe information based on the business rules.

In one embodiment, the services may include any one or more of analysisservices, intrusion detection services, anti-virus services, andsecurity services. Further, cybercop services may be provided. As anoption, the business rules may be user-configurable.

BRIEF DESCRIPTION OF THE DRAWINGS

Prior Art FIG. 1 shows a typical network analyzer deployment attached toa single switch.

Prior Art FIG. 2 depicts a network analyzer deployment using spanning.

Prior Art FIG. 3 depicts a network analyzer deployment using a VirtualLocal Area Network (VLAN).

FIG. 4 illustrates an enterprise deployment node, in accordance with oneembodiment.

FIG. 5 shows a larger enterprise deployment encompassing the node ofFIG. 4 and several other nodes communicating with each other viagateways.

FIG. 6 shows a representative hardware environment that may beassociated with the computers of FIGS. 4 and 5, in accordance with oneembodiment.

FIG. 7 illustrates an overview of a method for analyzing a networkutilizing an agent, host controller, and zone controller, in accordancewith one embodiment.

FIG. 8 illustrates a method for analyzing a network utilizing an agent,in accordance with one embodiment.

FIG. 9 illustrates the initialization of an agent according to oneembodiment.

FIG. 10 depicts an agent-host initialization interaction uponinitialization of the agent as set forth in FIG. 9.

FIG. 11 shows an agent-host normal run-time interaction according to oneembodiment.

FIG. 12 illustrates another agent-host normal run-time interactionaccording to another embodiment.

FIG. 13 illustrates a method for analyzing a network utilizing anagent/host controller interface.

FIG. 14 depicts an architecture for host-agent monitoring according toone embodiment.

FIG. 15 illustrates a method for analyzing a network utilizing a hostcontroller/zone controller interface.

FIG. 16 depicts host controller-zone controller interactions accordingto one embodiment.

FIG. 17 shows an example of message transmission between the zonecontrollers and the host controllers.

FIG. 18 depicts an example of messaging between a host controller andagent.

FIG. 19 illustrates a method for analyzing a network utilizing a zonecontroller.

FIG. 20 illustrates an overview of the operation of the zone controller.

FIG. 21 shows a corporate network divided into Zone 1, Zone 2, and Zone3.

FIG. 22 illustrates a method for reporting on network analysis, inaccordance with one embodiment.

FIG. 23 shows a graphical user interface for displaying various objectsassociated with the network traffic information collected by the agents,host controllers, zone controllers, etc.

FIG. 24 illustrates another exemplary graphical user interface fordisplaying various objects associated with the collected network trafficinformation.

FIG. 25 depicts a specific flow in which an enterprise network analyzeris used to perform enterprise latency mapping.

FIG. 26 is a graphical representation of an example of operation of FIG.25.

FIG. 27 shows a table that lists several operating systems that may besupported by one embodiment.

FIG. 28 illustrates a method for charging for network analysis, inaccordance with one embodiment.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIGS. 1–3 illustrate the prior art. FIG. 4 illustrates an enterprisedeployment node 400, in accordance with one embodiment. As shown, aplurality of computers 402 communicates with servers 404 via switcharrays 406. Illustrative computers include desktop computers, lap-topcomputers, hand-held computers, and/or associated devices such astelephones, printers, network devices, or any other type of hardware orsoftware logic. FIG. 5 shows a larger enterprise deployment 500encompassing the node 400 of FIG. 4 and several other nodes 502, 504communicating with each other via gateways 506.

FIG. 6 shows a representative hardware environment that may beassociated with the computers 402 of FIGS. 4 and 5, in accordance withone embodiment. Such figure illustrates a typical hardware configurationof a workstation in accordance with one embodiment having a centralprocessing unit 610, such as a microprocessor, and a number of otherunits interconnected via a system bus 612.

The workstation shown in FIG. 6 includes a Random Access Memory (RAM)614, Read Only Memory (ROM) 616, an I/O adapter 618 for connectingperipheral devices such as disk storage units 620 to the bus 612, a userinterface adapter 622 for connecting a keyboard 624, a mouse 626, aspeaker 628, a microphone 632, and/or other user interface devices suchas a touch screen and a digital camera (not shown) to the bus 612,communication adapter 634 for connecting the workstation to acommunication network 635 (e.g., a data processing network) and adisplay adapter 636 for connecting the bus 612 to a display device 638.

The workstation may have resident thereon an operating system such asthe Microsoft Windows NT or Windows 2000/XP Operating System (OS), theIBM OS/2 operating system, the MAC OS, or UNIX operating system. It willbe appreciated that one embodiment may also be implemented on platformsand operating systems other than those mentioned. One embodiment may bewritten using JAVA, C, and/or C++ language, or other programminglanguages, along with an object oriented programming methodology. Objectoriented programming (OOP) has become increasingly used to developcomplex applications.

A network analyzing system according to one embodiment functions withlarge, fully-switched enterprise environments such as those shown inFIG. 5. The system also provides a solution that may fully scale to anysize corporate network that is functionally complex with hierarchicallyextended relationships as depicted in FIG. 5. The system is also capableof monitoring and troubleshooting all nodes in a complex network.

As will soon become apparent, the system includes three major componentsthat interact together to provide a cohesive solution that operatessynergistically to achieve the features and concepts discussed herein.Table #1 illustrates three components of the present embodiment.

TABLE 1 Agent Host controller Zone Controller

Of course, any of the foregoing components may be used exclusive of theremaining components and/or combined with any additional desiredcomponents.

In the context of the present description, an agent 900 may refer to anycomputer program, hardware, etc. that is capable of collecting networktraffic information involving a computer on which it is installed orassociated. Further, network traffic information may refer to anyinformation relating to communications involving the computer and anetwork coupled thereto.

Further, a host controller 1002 may refer to any computer program,hardware, etc. that is capable of collecting network traffic informationfrom an agent 900 and/or controlling the same. Similarly, a zonecontroller 1602 may refer to any computer program, hardware, etc. thatis capable of collecting network traffic information from a hostcontroller 1002, agent 900, etc. and/or controlling the same. Of course,the foregoing components may optionally have additional capabilitiesthat will be set forth in the following descriptions.

FIG. 7 illustrates an overview of a method for analyzing a networkutilizing an agent 900, host controller 1002, and zone controller 1602,in accordance with one embodiment. As shown, the zone controller 1602begins by sending instructions to the host controller 1002 in operation701. As will soon become apparent, such instructions may take variousforms to control the operation of the host controller 1002 and/or agent900.

During use, the agent 900 sends a signal to the host controller 1002 inoperation 700. This signal is designed to prompt the delivery ofinstructions from the host controller 1002 in operation 702. With theseinstructions in hand, the agent 900 is capable of collecting networktraffic information in accordance with the instructions and send updatesregarding the same in operation 704.

In one embodiment, each agent 900 may be adapted to collect networktraffic information relating to at least one associated computer for afirst predetermined time interval. Further, the agents 900 may collectthe information in response to a demand received from the hostcontroller 1002.

This network traffic information subsequently enables the hostcontroller 1002 to generate a map 706. This network map may then be sentto the zone controller 1602 in operation 708 along with the updates onthe network traffic information in operation 710. In one embodiment, thehost controllers 1002 may be adapted for collecting the information fromthe agents 900 for a second predetermined time interval greater than thefirst predetermined time interval. Examples of such operation will beset forth hereinafter in greater detail.

The collection and updates involving the network traffic information mayoccur at predetermined times and during predetermined time intervalsdictated by the zone controller 1602. To ensure accuracy throughout thisprocess, the zone controller 1602 and host controller 1002 may besynchronized in operation 712.

To this end, the zone controller 1602 is adapted to report on thenetwork traffic in operation 714. In particular, the zone controllers1602 may be adapted for reporting on computers included in an associatedzone utilizing the network traffic information and the map received fromthe host controllers 1002.

In use, the agent 900 may execute on any desired node. Such agent 900 isresponsible for providing continuous monitoring and capturing on anassociated computer.

The host controller 1002, on the other hand, is responsible for managinga plurality of the agents 900 within an assigned domain. The hostcontroller 1002 then reports to a zone controller 1602 and mediatesvarious node operations.

The zone controller 1602 may operate by itself or in a peer-to-peerrelationship with other zone controllers 1602. The peer-to-peercapability allows for linear scalability to support any size enterprisenetwork. It should be noted that the zone controller 1602 may not benecessary for smaller networks, where the host controller 1002 could beprogrammed to provide the desired functionality.

More information relating to each of the various components will now beset forth in greater detail.

Agent (900)

FIG. 8 illustrates a method 800 for analyzing a network utilizing anagent 900, in accordance with one embodiment. It should be noted thatthe present method 800 may be carried out in the context of thearchitecture set forth hereinabove. Of course, the following principlesmay be applied in any desired context.

Initially, in operation 802, a boot is detected on the computerutilizing the agent 900 associated therewith. This may be accomplishedby detecting an indication from a booting operating system, or by anydesired technique.

In response to the boot, the agent 900 is adapted for sending a signalto identify a host controller 1002 over a network. See operation 804.Such signal may include any type of network communication adapted forestablishing communication with at least one host controller 1002.

The signal is repeatedly sent until the cessation of a predeterminedtime interval or a response is received from a host controller 1002coupled to the agent 900 via the network. See decisions 806 and 808.Similar to the signal, the response may include any type of networkcommunication from the host controller 1002 acknowledging communicationwith the agent 900.

Upon receiving the response from the host controller 1002, as determinedin decision 808, flow control and error correction are established withthe host controller 1002. See operation 810. Flow control refers to themanagement of data flow between computers or between nodes in a networkso that the data may be handled at an efficient pace. Too much dataarriving before a computer may handle it causes data overflow, meaningthe data is either lost or must be retransmitted. On the other hand,error correction allows data that is being read or transmitted to bechecked for errors and, when necessary, corrected on the fly.

In one embodiment, the agent 900 may communicate with the hostcontroller 1002 utilizing a layer three encrypted protocol, or any otherdesired protocol. In the context of Open Systems Interconnection (OSI),layer three protocol refers to communications at a network layer. Suchnetwork layer handles the routing of data (sending it in the rightdirection to the right destination on outgoing transmissions andreceiving incoming transmissions at the packet level). In general, thenetwork layer does routing and forwarding.

Next, in operation 812, the response from the host controller 1002 isread. As set forth earlier in the overview description in FIG. 7, suchresponse may include instructions as to the manner in which the agent900 collects the network traffic information, or any other desiredcontrol information. In other words, the network traffic involving thecomputer may be monitored per the instructions of the response. Seeoperation 814. For example, the network traffic involving the computermay be monitored and information on such network traffic may becollected at predetermined time, for a predetermined interval, etc. Seedecision 816.

Such network traffic information may then be sent to the host controller1002 in the form of periodic updates utilizing the agent 900. Seeoperation 818. It should be noted that the period or interval duringwhich the network traffic information is collected, and the period orinterval associated with the transmission of the network trafficinformation may or may not be the same, per the instructions receivedfrom the host controller 1002. Further, the agent 900 may also collectand provide updates on network traffic information in response to ademand. See decision 817.

Once the network traffic information update is sent, the agent 900 maypoll for the receipt of an acknowledgment from the identified hostcontroller 1002, in response to the updates. See decision 820. It shouldbe noted that operations 804 through 818 may be repeated upon the lackof receipt of an acknowledgement, as determined by decision 820.

While not shown, it should be noted that the agent 900 may be capable offiltering broadcast and multicast network traffic utilizing the agent900. In the context of the present description, broadcast and multicastnetwork traffic information includes communication between a singlesender and multiple receivers on a network.

It should be noted that the agent 900 need not necessarily include afull blown network analyzer, nor provide a user interface or expertanalysis. Rather, the agent 900 may merely keep a log of utilization andmatrix data for a pre-specified period or interval of time such as 30minutes, 60 minutes, etc. Further, the agent 900 may also capture dataon demand.

As will soon become apparent, a bulk of the processing that takes placemay be carried out on the zone controllers 1602, and at least to someextent on the host controllers 1002. The agent 900 may be designed as asmall Terminate and Stay Resident (TSR)-type driver program that may beless than 1 MB in size, and may run unobtrusively in the background tominimize drain on system resources. A TSR program is one that is set upto be loaded and then remain in computer memory so that it is quicklyaccessible when called.

The agent 900 may execute on multiple platforms, including Windows andUnix. The agents 900 may also be installed and managed via variouscommercially available tools such as Short Message Service (SMS) andlogin scripts, or rolled out as part of a corporate image. Further, theagents 900 may be deployed and/or removed on an “as-needed” basis aswell as on a permanent basis.

As mentioned hereinabove, the agent 900 may include a very lightweightclient with minimal impact on system resources. Further, the agent 900may communicate with the host controller 1002, with all data stayinglocal to the agent 900. The agent 900 may further provide services suchas those listed in Table #2.

TABLE 2 Utilization Matrix Application Response Times (ART) Patternfiltering Capture with no expert

A specific example of the operation of the agent 900 will now be setforth during reference to FIGS. 9–12. It should be noted that suchexample is set forth for illustrative purposes only, and should not beconstrued as limiting in any manner.

FIG. 9 illustrates the initialization of an agent 900 according to oneembodiment. When the computer 402 running the agent 900 boots up, itsends a multicast 902 to a custom group address. A “looking for hostcontroller” frame may be displayed on a graphical user interface on thecomputer 402 to indicate that initialization is being attempted. Themulticast 902 is repeated until a host controller 1002 responds or atimer expires.

FIG. 10 depicts an agent-host initialization interaction uponinitialization of the agent 900 as set forth in FIG. 9. The hostcontroller 1002 responds to the multicast 902 from the agent 900 withthe current update interval settings and any desired configuration data.The communications between the host controller 1002 and the agent 900include unicast communications. Further, Type II Logical Link Control(LLC) may be used to provide flow control and error correction.

If a predetermined number of updates at the set interval areunacknowledged by the host controller, the agent 900 may revert tomulticast mode until contact is reestablished or the timer runs out.

FIG. 11 shows an agent-host normal run-time interaction according to oneembodiment. At the configured interval, the agent 900 sends a statusupdate frame 1102 directly to the host controller 1002, whichacknowledges receipt of the frame 1102. The frame 1102 may include, forexample, a Media Access Control (MAC) address, Internet Protocol (IP)address, computer name, utilization statistics, matrix statistics, ARTstatistics, line rate, etc. The host controller 1002 sends anacknowledgement 1104 back to the agent 900 upon receiving the frame1102.

FIG. 12 illustrates another agent-host normal run-time interactionaccording to an embodiment. As shown, the agent 900 filters outbroadcast and multicast traffic to cut down on the load to theassociated computer 402. See 1202. The host controller 1002 filters outall unicast traffic, thereby picking up all flooded traffic on thedomain to ensure that utilization calculations are correct. See 1204.

The agents 900 may be deployed enterprise-wide. To this end, atechnician does not have to be at or go out to the point of trouble. Theentire enterprise may be viewed, analyzed, and diagnosed from a centralpoint. Full historical data may be made available for post-eventanalysis. Further, by deploying agents 900, it is not necessary totransport physical network analyzers and install them at various pointsof interest in the enterprise because all data is constantly beingcollected and is readily available. More importantly, the presentembodiment may provide guidance at a global level instead of the narrowviewpoint provided by prior art systems.

There are situations that exist in which putting an agent 900 on anetwork computer may not be possible. There are many network computersor devices that exist in which the possibility of placing an executablepiece of software on that computer is not feasible. Some examples arelisted in Table #3.

TABLE 3 Routers Switches Hubs Cache Engines Local Directors Firewalls

In most of these situations, an agent 900 may not be required tophysically exist on that particular computer. If an agent 900 exists onanother computer that is connected to such a “non-agent capable”computer, then coverage may be attained.

One effect of placing agents 900 on computers connected to the non-agentcapable computers is to provide complete coverage for the overwhelmingmajority of a corporate network. However, there could still be somespecial situations in which visibility into a particular node on anetwork cannot be obtained. In these special cases, it may be necessaryto span a particular port in a switch, for example, in order to gainvisibility.

An overall effect of the use of the agents 900 is that the foregoingtype of scenario is reduced to a minimum. Additionally, the need to spanwithin a switch is also significantly reduced such that it truly is anexception condition.

Host Controller (1002)

The operation of the host controller 1002 maybe bifurcated into a firstmethod for interfacing with the agents 900, and a second method forinterfacing with the zone controllers 1602. Both of such methods willnow be set forth separately below.

FIG. 13 illustrates a method 1300 for analyzing a network utilizing anagent/host controller interface. It should be noted that the presentmethod 1300 may be carried out in the context of the architecture andmethods set forth hereinabove. Of course, the following principles maybe applied in any desired context.

In decision 1302, it is determined whether a signal has been receivedfrom an agent 900. As mentioned earlier, such signal may include anytype of network communication for establishing communication with atleast one host controller 1002.

In response to the signal, the agent 900 is sent instructions inoperation 1304. In particular, an interval setting and any desiredconfiguration data may be sent. Thus, the agent 900 may transmit networktraffic information in a manner that is based the configuration data,and at a time interval based on the interval setting. An example of suchinstructions will be set forth later.

In operation 1306, the host controller 1002 is adapted for filteringunicast network traffic. Unlike multicast network traffic, unicast iscommunication between a single sender and a single receiver over anetwork. As mentioned earlier, the host controller 1002 filters outunicast traffic, thereby picking up all flooded traffic on the domain toensure that utilization calculations are correct.

After the agent 900 is instructed as to the appropriate operation, thehost controller 1002 is equipped for receiving the network trafficinformation from the agent 900 per the interval setting. See decision1308.

Still yet, in operation 1310, the host controller 1002 may generate amap based on the network traffic information. Such map may include anytype of mapping or correlation among the computers and the networktraffic information associated therewith.

FIG. 14 depicts an architecture 1400 for host-agent monitoring accordingto one embodiment. The host controller 1002 communicates with andmanages all agents 900 within an assigned domain. The host controller1002 may mediate the registered agent processes, and buffer data for thezone controllers 1602. The host controller 1002 may also update theassigned zone controller 1602 at user configurable intervals. This rolemay be a low intensity task that requires minimal resources.

The host controller 1002 may run on a custom turnkey box for securityreasons. The turnkey boxes may be created by modifying existing boxesthat a user already has on hand. As an option, the computationrequirements of the host controller 1002 may be minimal with no high-endhardware being necessary.

For security reasons, the host controller 1002 may utilize a customprotocol to communicate with the agents 900 and retains all associateddata locally. For communication with the zone controller 1602, encryptedlayer three communications may be used. In the context of OSI, layerthree protocol refers to communications at a network layer. Such networklayer handles the routing of data (sending it in the right direction tothe right destination on outgoing transmissions and receiving incomingtransmissions at the packet level). In general, the network layer doesrouting and forwarding.

The host controller 1002 maintains a configurably durational monitorhistory on each agent 900, such as a 24-hour history, and createsnetwork maps based on the agent 900 updates. The host controller 1002may also provide monitor updates to the zone controller 1602 atconfigurable intervals and mediate data capture on demand.

FIG. 15 illustrates a method 1500 for analyzing a network utilizing ahost controller/zone controller interface. Again, it should be notedthat the present method 1500 may be carried out in the context of thearchitecture and methods set forth hereinabove. Of course, the followingprinciples may be applied in any desired context.

First, it is determined decision 1502 as to whether instructions arereceived from a zone controller 1602. For example, such instructions mayinclude an interval setting indicating a period with which networktraffic information is to be sent to the zone controller 1602. Further,the instructions may include specific instructions dictating the mannerin which the agents 900 should operate. In such case, a second set ofinstructions may be sent from the host controller 1002 to the agents 900based on the instructions received in the previous operation. Seeoperation 1504. As mentioned earlier, the second set of instructions maytake the form of a response to a signal from the agents 900.

Next, the aforementioned interval setting is monitored and the hostcontroller 1002 polls for the receipt of a demand over the network. Notedecisions 1506 and 1508. In response to the demand or the cessation ofthe predetermined interval, the network traffic information istransmitted to the zone controller 1602 in operation 1510.

Further, in operation 1512, a map is generated and transmitted to thezone controller 1602. Further, a clock between the host controller 1002and the zone controller 1602 may be synchronized in operation 1514. Thismay facilitate the accuracy with which the network traffic informationis transmitted. In particular, the host controller 1002 may be capableof transmitting the network traffic information at a designated timethat is in synch with a clock of the zone controller 1602.

FIG. 16 depicts host controller-zone controller interactions accordingto one embodiment. At a set (configurable) interval (or on demand), eachhost controller 1002 sends a status update including a map and networktraffic information to the zone controller 1602, as shown. During use,each host controller 1002 may maintain a secure layer three connection1604 with the associated zone controller 1602.

FIG. 17 shows an example of message transmission between the zonecontroller 1602 and the host controllers 1002. As shown, a first message1702 instructs a host controller 1002 to start capturing data from agent900 X at 0750 hours. A second message 1704 to another host controller1002 is a request for monitor data. A third message 1706 to yet anotherhost controller 1002 instructs the host controller 1002 to startcapturing data from agent 900 Y at 0750 hours. The messages maybe forany purpose, including synchronizing clocks between the host controller1002 and the zone controller.

FIG. 18 depicts an example of messaging between a host controller 1002and agent 900. In this example, the host controller 1002 sends a message1802 to the agent 900, instructing the agent 900 to prepare to capturedata. A trigger sequence follows transmission of the message 1802, wherethe host controller 1002 sends a message 1804 instructing the agent 900to begin the capture. The agent 900 then sends a confirmation message1806, and when prepared to begin the capture, sends another message 1808to that effect.

Zone Controller (1602)

FIG. 19 illustrates a method 1900 for analyzing a network utilizing azone controller 1602. It should be noted that the present method 1900may be carried out in the context of the architecture and methods setforth hereinabove. Of course, the following principles may be applied inany desired context.

Initially, a clock associated with the zone controller 1602 issynchronized with a plurality of host controllers 1002. See operation1901. As mentioned earlier, this may facilitate the accuracy with whichthe network traffic information is transmitted and collected.

Next, network traffic information is received from the host controllers1002 over a network. See decision 1902. Further, in operation 1903, azone associated with each of the host controllers 1002 is identified.Still yet, in decision 1905, any of the aforementioned maps are alsoreceived from the host controllers 1002.

Utilizing the maps and a plurality of network-based interfaces, thenetwork traffic information relating to each of the zones is reported.See operation 1906. More information regarding the network-basedinterfaces and the manner in which the network traffic information isreported will be set forth hereinafter in greater detail. As an option,the network traffic information may be offloaded to a database forsubsequent reporting, archival purposes, and/or improving the efficiencyof the overall system. See operation 1908.

A specific example of the operation of the zone controller 1602 will nowbe set forth during reference to FIGS. 20–22. It should be noted thatsuch example is set forth for illustrative purposes only, and should notbe construed as limiting in any manner.

FIG. 20 illustrates an overview of the zone controller 1602 operation.As shown, the zone controller 1602 receives data about a particular zone400 from host controllers 1002. The zone controller 1602 assembles thedata from the host controllers 1002 to create an entire enterprisepicture of the corporate network. The zone controllers 1602 together maymaintain a peer-to-peer architecture to ensure the system is infinitelyscalable.

Further, the zone controller 1602 may provide web-based user interfacesfor viewing reports and capturing data. A customizable, web-based userinterface may allow users to view monitor data, generate reports, andcapture data from each zone.

The zone controller 1602 may also be capable of offloading data todedicated database servers to support long-term reporting needs. Thezone controller 1602 may also process data from multiple segments withan enterprise network analyzer capability, as discussed below.

As an option, the zones may roughly correspond to physical sites. FIG.21 shows a corporate network 2100 divided into Zone 1 2102, Zone 2 2104,and Zone 3 2106. The zone controllers 1602 of each zone collect datafrom the host controllers 1002 of their particular zones, and thencommunicate with each other to generate an overall picture of thenetwork.

FIG. 22 illustrates a method 2200 for reporting on network analysis, inaccordance with one embodiment. The present reporting method 2200 may becarried out in the context of the architecture and methods set forthhereinabove. If desired, the following principles may be applied in anyother context.

Initially, network traffic information is collected utilizing aplurality of agents 900 installed in computers distributed among aplurality of zones. See operation 2202. Next, in operation 2204, thenetwork traffic information may be collected from the agents 900associated with each zone at a separate controller. In other words, theagents 900 may be organized based on a physical zone in which itresides. Further, a separate controller may be dedicated to each zone.It should be noted that the host controllers 1002 may optionally beimplemented based on a size of the zones, desires of the user, etc.

Next, in operation 2206, a request is received at one of the controllersfor a report on the network traffic information corresponding to thezone associated with the controller. Further, the report is transmittedfrom the controller to a computer coupled thereto via a network. Seeoperation 2208. In use, the report is capable of being displayed on acomputer utilizing a network browser (i.e. MS EXPLORER®, NETSCAPENAVIGATOR®, etc.) Further, various tools such as a network analyzer maybe used to enhance the reporting aspect of the present embodiment.

As an option, one embodiment may employ multi-segment analysis tocollect information from multiple segments on a network. In suchembodiment, network traffic information relating to each segment may bereported in an integrated manner.

Enterprise Network Analyzer

A network analyzer may be used to perform network analysis and makedecisions on data that is global to an entire corporate enterprisenetwork. The network analyzer may be able to concurrently manage,diagnose problems, and identify symptoms across the enterprise network.Further, the network analyzer may provide guidance and recommendationsat an enterprise level. One example of a network analyzer that may beused in the context of the present embodiment is the SNIFFER ANALYZER™device manufactured by NETWORK ASSOCIATES, INC™. Of course, any desiredtype of network analyzer may be used per the desires of the user.

FIG. 23 shows a graphical user interface 2300 for displaying variousobjects associated with the network traffic information collected by theagents 900, host controllers 1002, zone controllers 1602, etc. In thecontext of the present description, an object may refer to a buffer,memory, a table or any other set of data that is associated with aspecific communication protocol layer (i.e. connection, session,application, etc.). Of course, various other layers may be representedby other objects.

While the present graphical user interface 2300 shows a plurality ofvoice-specific protocols, any type of protocol may be monitored. Theinstant graphical user interface 2300 is disclosed for illustrativepurposes only, and should not be construed as limiting in any manner.

As shown, a plurality of groups of objects 2301 is displayed in a firstwindow 2302, in accordance with one embodiment. As an option, upon theselection of one of the groups of objects 2301, a second window 2304 maybe shown which includes the particular objects associated with thechosen group of objects 2301.

This second window 2304 may further include information associated witheach listed object. Such information may include, but is not limited toa first network station, a second network station, a protocol associatedwith the objects, a number of packets in the objects, and a size of theobjects.

Also included is a third window 2306 for displaying summary informationrelating to the groups of objects 2301 associated with particularprotocols. In other words, a total number of packets and a total size ofall objects in a particular group associated with particular protocolsare shown in the third window 2306.

At any desired time, a selection of one of the objects in the secondwindow 2304 may be received from the user. Protocol-specific packetsassociated with the selected object are then filtered and displayed uponreceipt of the selection.

FIG. 24 illustrates another exemplary graphical user interface 2400 fordisplaying various objects associated with the collected network trafficinformation. Again, the present graphical user interface 2400 showsvoice-specific protocols. It should be noted, however, that any type ofprotocol may be monitored. Graphical user interface 2400 is disclosedfor illustrative purposes only, and should not be construed as limitingin any manner.

As shown in FIG. 24, a tree representation 2401 may be displayed as anydesired combination of file directories including a plurality ofsubdirectories which, in turn, include a plurality of files. Each one ofsuch entities (i.e. directories, subdirectories, files, etc.) isindicative of an associated object. By selecting one of such entities,collected data associated with a specific protocol layer(s) is displayedin a tabular display 2404.

Such tabular display 2404 includes a plurality of display portions eachdedicated to displaying information corresponding with lower-layerobjects associated with the object selected via the tree representation2401. As an option, the tabular display 2404 may further include arequest/response field which may list a plurality of requests andresponses at the selected protocol layer.

The tree representation 2401 may thus be displayed as a file directory,and the objects may be accessed and reported by selecting directoriesand files, etc. of the file directory. It should be noted that theforegoing interfaces may take any desired form. Further, any desiredtests, analysis techniques, etc. may be used in conjunction with theinterfaces for enhanced reporting. One exemplary analysis technique willnow be set forth.

FIG. 25 depicts a specific flow in which an enterprise network analyzeris used to perform enterprise latency mapping. According to theillustrative scenario, a zone controller 1602 chooses a port numberassociated with an application in operation 2502. In operation 2504, thezone controller of the zone controller 1602 pushes an ART configurationrequest to all host controllers 1002 in its zone.

The host controllers 1002 then push ART configuration requests out toall active agents 900 in operation 2506. In operation 2508, the agents900 begin to monitor that port. ART monitor data is sent from the agents900 to the host controllers 1002 in operation 2510 and buffered inoperation 2512.

Then, the host controllers 1002 update the zone controller 1602 with theconsolidated ART monitor data in operation 2514. In operation 2516, thedifferences in delay times are calculated to construct a picture oflatency throughout the enterprise.

FIG. 26 is a graphical representation of an example of operation 2516 ofFIG. 25. As shown, a data transmission latency between User 1 2602 andServer 1 2604 is calculated by subtracting the time to send Server 1data to User 1 2602 from the time it takes to send User 1 data to Server1 2604 (or vice versa). In this example, the delay time is 90 ms (90ms–1 ms). The delay time between User 2 2606 and Server 1 2604 is 9 ms(10 ms–1 ms).

Security and Other Applications

As an option, one embodiment may be provided for affording businessrule-based network services utilizing a network. Initially, informationrelating to a plurality of computers is collected utilizing a pluralityof agents coupled to the computers via a network. Next, the informationis collected from the agents utilizing a plurality of host and/or zonecontrollers coupled to the agents. Then, a plurality of business rulesis identified after which various services are provided utilizing theinformation based on the business rules.

In one embodiment, the services may include any one or more of analysisservices, intrusion detection services, anti-virus services, andsecurity services. Further, cybercop services may be provided.

As an option, another embodiment may be capable of scanning networktraffic and detecting intrusions in the network, in addition to thevarious functionality set forth hereinabove. For example, the hostcontrollers 1002 may be adapted for collecting information (i.e. networktraffic information, etc.) from the agents 900, scanning theinformation, and detecting intrusions in the network. As another option,the host controllers 1002 may be further capable of cybercop services.

The foregoing scanning may be adapted for searching for known types ofsecurity events in the form of malicious programs such as viruses,worms, and Trojan horses. Still yet, [O]the scanning may be adapted forcontent scanning to enforce an organization's operational policies [i.e.detecting harassing or pornographic content, junk e-mails,misinformation (virus hoaxes), etc.].

Further, the zone controllers 1602 may be adapted for analyzing theoutput of the host controllers 1002, and executing security actions inresponse to any security events. Such security actions may includedeleting files, quarantining files, cleaning files, etc. It should benoted that the foregoing security functionality associated with the hostcontrollers 1002 and zone controllers 1602 may be interchangeable perthe desires of the user.

Optionally, the host controllers 1002 and the zone controllers 1602 mayoperate based on business rules. Such business rules may beuser-configurable. Still yet, the zone controllers 1602 may be furthercapable of integrated reporting based on information collected frommultiple points on a network.

SNMP Interface

Simple Network Management Protocol (SNMP) is a User Datagram Protocol(UDP)-based application-layer protocol that facilitates the exchange ofmanagement information between network computers. It is not necessarilylimited to TCP/IP networks. There are three versions of the SNMPprotocol. SNMP and SNMPv2 do not have any mechanisms for authenticationand privacy of the management data that are required to fully exploitSNMP. SNMPv3 addresses this deficiency and defines a set of RemoteFunction Calls (RFCs) which provide a framework for a fully securemechanism for using SNMP for network management.

Managed computers are monitored and controlled using four basic SNMPcommands shown in Table #4.

TABLE 4 Read Write Trap Traversal Operations

The read command is used by a Network Management System (NMS) to monitorand collect management data from managed computers. The NMS examinesdifferent variables that are maintained by managed computers. The readcommand is achieved by performing SNMP GET, GETNEXT, AND GETBULKoperations.

The write command is used by an NMS to control managed computers. TheNMS changes the values of variables stored within managed computers. Thewrite command is performed by a SNMP SET operation.

The trap command is used by managed computers to asynchronously reportevents to the NMS. When certain types of events occur, a managedcomputer sends a SNMP trap to the NMS.

Traversal operations are used by the NMS to determine which variables amanaged computer supports and to sequentially gather information invariable tables, such as a routing table in a router.

The network analyzing system according to one embodiment may leveragethe benefits of SNMP to collect additional management data present innetwork devices like switches, bridges, routers and hubs. The hostcontroller 1002 may be made “SNMP aware” by building a SNMP managercapability into the host controller 1002. This may include performingthe SNMP GET, GETNEXT and GETBULK operations on specific entities inManagement Information Bases (MIBs) such as the MI14, RMON (RFC 2819),RMON2 (RFC 2021), bridge MIB (RF25493) and other MIBs and processingSNMP traps from such computers.

Using SNMP in a network analyzing system provides many benefits. Forexample, SNMP is the most widely-used network management protocol onTCP/IP-based networks.

Since deploying a custom agent 900 on network computers may not bepossible for monitoring and collecting network data, as discussed indetail above, some other mechanism may be needed to extract this data.In such situation, SNMP may be used to poll the above specified MIBs andto collect useful data, and augment the enterprise managementcapabilities of a system.

Another benefit is that network computers within the domain of a hostcontroller 1002 may be configured to report SNMP traps to the hostcontroller 1002. By having a trap capture engine, the network analyzingsystem may be used to better report network problems reactively as wellas perform some expert analysis to proactively suggest/prevent furthernetwork problems by an event-correlation mechanism.

EXAMPLE

The network analyzing system set forth herein provides centralizedmanagement of monitoring operations. Centralization translates intofewer hardware nodes on the network to manage, fewer points of failure,etc. It also means one main point is provided for all networksmonitoring and troubleshooting whether at layers 1, 2, 3, 4, 5, 6 or 7.

The present network analyzing system is a fully integrated and scalablesystem that may be used with fully-switched enterprise networks toprovide full reporting capabilities across the entire enterprise as wellas perform proactive monitoring, detecting and trouble shooting ofnetwork performance and problems. In particular, the system may becapable of concurrently capturing and monitoring data at any point inthe corporate network. Further, the monitoring and trouble shooting ofthe entire network may be performed remotely and at a centralizedlocation.

The system may be able to co-exist with, and even take advantage of, anexisting infrastructure. For example, network analyzers already in theinfrastructure may become data providers to the central server.

A powerful correlation engine may also be provided. The correlationengine, in one configuration, uses information that has been collectedand sequenced from the entire enterprise. Analysis engines that mine theconsolidated data being collected may also be provided. Multi-segmentand multi-enterprise analysis also is possible according to oneembodiment.

In addition, the system may be integrated with a wireless environmentthat would permit sending traps, alarms, and messages to and receivingcommands from personal digital assistants (PDAs), wireless phones, landphones, wireless notebooks, etc.

The system according to one embodiment may support multiple operatingsystems (OS). The host controller 1002 and zone controller 1602 may beimplemented as dedicated platforms, and the requirement for multiple OSsupport is not prevalent with respect to them.

The agent may, however, support multiple operating systems. The agent900 may be deployed in heterogeneous OS environments and supports a fullrange of OS's when fully deployed. The agents 900 are then capable ofproviding enterprise-wide network coverage in a heterogeneous networkenvironment.

FIG. 27 shows a table 2700 that lists several operating systems that maybe supported by the system. It should be noted that the list of FIG. 27is not intended to be a complete list of supported systems.

The network analyzing system may also provide the capability to “lookback” into problems to understand how they started. The system may alsoautomatically detect rogue computers, and may monitor and troubleshootcomputers running on a wide variety of platforms.

As mentioned earlier, an automatic mapping of the entire network mayalso be performed. A secure enterprise view of the entire corporatenetwork may be generated and made accessible, via the Internet, from anylocation in the world. In addition, layer 2/layer 3 network topologiesmay be displayed in a hierarchical manner. Other types of mappings mayalso be provided. Network maps of computers may be created and used toquickly locate troublesome computers. As an option, the system mayprovide constant network baselining and continuous baseline monitoring.

As an option, the system has at least one centralized reporter serverwhich generates and, if desired, transmits reports. Web-based userinterfaces may be used for reporting, capturing and analysis, allviewable via a remote console. One type of report function providesin-depth historical reporting for network activity on multipleenterprises, segments, sub-nets and/or discrete nodes. Other types ofoutput include decodes and analysis from the network analyzer. In anymode, network monitoring data may be transferred securely.

The network analyzing system may be constructed of a scalablearchitecture that does not compromise security. Network securitymanager-type functionality may also be provided. The present systemperforms equally well in both flat-repeated networks and fully-switchednetworks.

The system may fully utilize Remote Network Monitoring (RMON) datapresent in any network. RMON provides standard information that anetwork administrator may use to monitor, analyze, and troubleshoot agroup of distributed local area networks (LANs) and interconnecting datatransmission lines (e.g., T-1/E-1 and T-2/E-3 lines) from a centralsite. RMON specifically defines the information that any networkmonitoring system is able to provide.

RMON collects nine kinds of information, including packets sent, bytessent, packets dropped, statistics by host, statistics by conversationsbetween two sets of addresses, and certain kinds of events that haveoccurred. This information may be used to determine how much bandwidthor traffic each user is imposing on the network and what web sites arebeing accessed. Alarms may be set in order to be aware of impendingproblems.

Business Model

FIG. 28 illustrates a method 2800 for charging for network analysis, inaccordance with one embodiment. It should be noted that the presentmethod 2800 may be carried out in the context of the architecture andmethods set forth hereinabove. Of course, the following principles maybe applied in any desired context.

Initially, in operation 2802, network traffic information is collectedutilizing a plurality of agents 900. Next, the network trafficinformation is consolidated (i.e. collected, grouped, organized, etc.)utilizing a plurality of host controllers 1002 coupled to the agents900. This may be accomplished utilizing any of the techniques andfunctionality associated with the host controller 1002 set forthhereinabove, and/or using any other desired method.

Once consolidated, the network traffic information is reported to a userutilizing a plurality of zone controllers 1602 coupled to the hostcontrollers 1002. See operation 2806. Of course, this may beaccomplished utilizing any desired network-based interface, networkanalyzer interface, etc.

Next, in operation 2808, a reoccurring fee associated with the reportingis determined based on a number of the agents 900, the host controllers1002, and/or the zone controllers 1602. An option, each agent 900 mayincur a first reoccurring fee, each host controller 1002 may incur asecond reoccurring fee greater than the first reoccurring fee, and eachzone controller 1602 may incur a third reoccurring fee greater than thesecond reoccurring fee.

As yet another option, a gold, silver, bronze tiered system may be usedto determine the reoccurring fee. In such embodiment, the number ofagents 900, host controllers 1002, and/or zone controllers 1602 may beset for each tier. Still yet, a non-linear function may be used tocalculate the reoccurring fee.

Of course, any type of calculation scheme may be used which takes intoaccount the number of agents 900, host controllers 1002, and/or zonecontrollers 1602. Once calculated, the user is charged the recurring feein operation 2810.

As an option, additional agents 900 may be coupled to the hostcontrollers 1002 over time. In a similar manner, additional hostcontrollers 1002 and/or zone controllers 1602 may be incorporated into asystem to meet the changing needs of a corporate enterprise. Further,the reoccurring fee may be adjusted based on the number of additionalcomponents. Still yet, the user may be charged the recurring feeutilizing a network. Additional exemplary features associated with thepresent method 2800 will now be set forth.

The network analyzing system may thus include reusable technology thatmay support multiple product and service offerings. The present businessmodel offers an option to offload the responsibility of networkmanagement to the network monitoring system. Such offloading reduces thenumber of IT staff needed for managing corporate networks, therebydrastically reducing the cost and manpower needed for monitoring,maintaining, and troubleshooting networks.

The present network analyzing system may be sold as a flexible,configurable solution that customers implement within their enterprises.It may also be priced for any size enterprise with dynamic subscriptionmodels supported based on easily comprehended metrics such as quantityof agents 900, host controllers 1002, and zone controllers 1602, etc.The present billing model allows users to deploy agents 900 on demand,and to be billed accordingly. The system may also be sold as an OriginalEquipment Manufacturer (OEM) product to service providers.

The system may support an Application Service Provider (ASP) offeringfor small, medium, and large businesses that would result in a directrecurring revenue stream. Ideally, recurring revenue streams may beestablished by marketing and selling the network analyzing system as acontinuous monitoring and diagnosing service to customers that pay arecurring fee on any predefined interval such as monthly, quarterly,etc. Another business model provides flexibility by selling the systemboth as a product and a service.

One possible licensing model is based on a recurring subscription feewith flexible price points based on the complexity of the corporatenetwork being monitored. The price points may be based on the number ofagents 900, host controllers 1002, and/or zone controllers 1602. Thismodel provides an extremely flexible pricing strategy for determining anamount to charge for subscription services for providing completecorporate enterprise network monitoring and troubleshooting on acontinuous 24-hour basis to customers.

While various embodiments have been described above, it should beunderstood that they have been presented by way of example only, and notlimitation. For example, any of the network elements may employ any ofthe desired functionality set forth hereinabove. Thus, the breadth andscope of a preferred embodiment should not be limited by any of theabove-described exemplary embodiments, but should be defined only inaccordance with the following claims and their equivalents.

1. A system for analyzing a network, scanning the network, and detectingintrusions in the network, comprising: (a) a plurality of agents coupledto a plurality of computers interconnected via a network, each agentadapted to collect information; (b) a plurality of host controllerscoupled to the agents for collecting the information from the agents,scanning the information, and detecting intrusions in the network; and(c) a plurality of zone controllers coupled to the host controllers foranalyzing an output of the host controllers, and executing securityactions in response thereto; wherein a report is generated including aplurality of objects in a tree representation; wherein intrusiondetection services are provided based on the information; wherein aSimple Network Management Protocol (SNMP) trap capability is utilized.2. The system as recited in claim 1, wherein the host controllers arefurther capable of cybercop services.
 3. The system as recited in claim1, wherein the zone controllers are further capable of integratedreporting.
 4. The system as recited in claim 1, wherein the hostcontrollers and the zone controllers operate based on business rules. 5.The system as recited in claim 1, wherein the business rules areuser-configurable.
 6. A method for analyzing a network, scanning thenetwork, and detecting intrusions in the network, comprising; (a)collecting information relating to a plurality of computers utilizing aplurality of agents coupled to the computers via a network; (b)collecting the information from the agents utilizing a plurality of hostcontrollers coupled to the agents; (c) scanning the informationutilizing the host controllers; (d) detecting intrusions in the networkutilizing the host controllers; (e) collecting the information from thehost controllers utilizing a plurality of zone controllers coupled tothe host controllers; (f) analyzing output of (b)–(d) utilizing the zonecontrollers; and (g) executing security actions based on the analysisutilizing the zone controllers; wherein a report is generated includinga plurality of objects in a tree representation; wherein intrusiondetection services are provided based on the information; wherein aSimple Network Management Protocol (SNMP) trap capability is utilized.7. The method as recited in claim 6, wherein the host controllers arefurther capable of cybercop services.
 8. The method as recited in claim6, wherein the zone controllers are further capable of integratedreporting.
 9. The method as recited in claim 6, wherein the hostcontrollers and the zone controllers operate based on business rules.10. The method as recited in claim 6, wherein the business rules areuser-configurable.
 11. A computer program product for analyzing anetwork, scanning the network and detecting intrusions in the network,comprising: (a) computer code for collecting information relating to aplurality of computers utilizing a plurality of agents coupled to thecomputers via a network; (b) computer code for collecting theinformation from the agents utilizing a plurality of host controllerscoupled to the agents; (c) computer code for scanning the informationutilizing the host controllers; (d) computer code for detectingintrusions in the network utilizing the host controllers; (e) computercode for collecting the information from the host controllers utilizinga plurality of zone controllers coupled to the host controllers; (f)computer code for analyzing output of (b)–(d) utilizing the zonecontrollers; and (g) computer code for executing security actions basedon the analysis utilizing the zone controllers; wherein a report isgenerated including a plurality of objects in a tree representation;wherein intrusion detection services are provided based on theinformation; wherein a Simple Network Management Protocol (SNMP) trapcapability is utilized.
 12. The computer program product as recited inclaim 11, wherein the host controllers are further capable of cybercopservices.
 13. The computer program product as recited in claim 11,wherein the zone controllers are further capable of integratedreporting.
 14. The computer program product as recited in claim 11,wherein the host controllers and the zone controllers operate based onbusiness rules.
 15. The computer program product as recited in claim 14,wherein the business rules are user-configurable.
 16. A system foranalyzing a network, scanning the network and detecting intrusions inthe network, comprising: (a) agent means adapted to collect information;(b) host controller means for collecting the information from the agentmeans, scanning the information, and detecting intrusions in thenetwork; and (c) zone controller means for analyzing an output of thehost controller means, and executing security actions in responsethereto; wherein a report is generated including a plurality of objectsin a tree representation; wherein intrusion detection services areprovided based on the information; wherein a Simple Network ManagementProtocol (SNMP) trap capability is utilized.
 17. The system as recitedin claim 16, wherein the host controller means is further capable ofcybercop services.
 18. The system as recited in claim 16, wherein thezone controller means is further capable of integrated reporting. 19.The system as recited in claim 16, wherein the host controller means andthe zone controller means operate based on business rules.
 20. Thesystem as recited in claim 19, wherein the business rules areuser-configurable.
 21. A system for analyzing a network, scanning thenetwork, and detecting intrusions in the network, comprising: (a) aplurality of agents coupled to a plurality of computers interconnectedvia a network, each agent adapted to collect information; (b) aplurality of host controllers coupled to the agents for collecting theinformation from the agents; (c) means for scanning the information; (d)means for detecting intrusions in the network; (e) a plurality of zonecontrollers coupled to the host controllers for analyzing an output ofthe host controllers; and (f) means for executing security actions inresponse to at least one of the scanning, the detecting, and theanalyzing; wherein a report is generated including a plurality ofobjects in a tree representation; wherein intrusion detection servicesare provided based on the information; wherein a Simple NetworkManagement Protocol (SNMP) trap capability is utilized.
 22. The systemas recited in claim 1, wherein enterprise latency mapping is performed.23. The system as recited in claim 22, wherein at least one of the zonecontrollers chooses a port number associated with an application. 24.The system as recited in claim 23, wherein the at least one zonecontroller pushes a configuration request to a plurality of the hostcontrollers in an associated zone.
 25. The system as recited in claim24, wherein the host controllers push the configuration request to theagents.
 26. The system as recited in claim 25, wherein the agentsmonitor a port associated with the port number.
 27. The system asrecited in claim 26, wherein monitor data is sent from the agents to thehost controllers.
 28. The system as recited in claim 27, wherein themonitor data is buffered.
 29. The system as recited in claim 27, whereinthe host controllers update the at least one zone controller withconsolidated monitor data.
 30. The system as recited in claim 29,wherein differences in delay times are calculated to construct a pictureof latency throughout an enterprise.